Persistent ERR _SSL _VERSION _OR _CIPHER _MISMATCH Error with Certificate

Perfect! Yes it probably takes some time. When connecting to my site I now get “HTTP ERROR 502”. After giving it a quick search, the internet told me this:“A 502 bad gateway message indicates that one server got an invalid response from another. In essence, you’ve connected with some kind of interim device (like an edge server) that should fetch all of the bits you need to load the page.”. Can this error be a result of the DNSSEC still being announced? Or can this error be created because I still have Universal SSL enabled in Cloudflare?